Paper-box machine



(No ModeL) Q 3 Sheets-Sheet 1. B.E.BEOKER. A

' PAPER BOX MACHINE.

N0. 315,461. v Patented Apr. 14, 1885.

TQESSES N PETERS. PhnloLilhognphcn Washin ton. D. C.

3 Sheets-Sheet 2.

(No Model,)

B.E.BEGKER..

PAPER BOX MACHINE.

P d A 14, 18 5 atente pr 85 JWYWW N. PETERS. Phoxu-Limu m m. Washington.D. C.

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'B..E.B EG KER. f

1 PAPER BOX MACHINE. No. 315,461. Patsnted Apr. 14,1885.

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N. PETERS. Plvnlo-hlhogmpher. washinmm ac.

I UNITED STATES f PATENT OFFICE.

BERNARD- E. BECKER,

BROCKTON, MASSAGHUSETTS.

PAPER-BOX MACHINE.

SPECIFICATION forming part of Letters Patent No.'315,461, dated April14:, 1885.

' Application filed April 9, 1884. (No model.)

T at whom it may concern.-

Be it known that I, BERNARD E. BECKER, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Paper-Box Machines;

and I do hereby declare that the same are fully described in thefollowing specification and illustrated in the accompanying drawings.

This invention relates to improvements in paper-box machines for thepurpose of securing the sides to the bottom piece of pasteboard boxesWithout the need of scoring the sides at the place where they overlapthe bottom piece, as will hereinafter be more fully shown and described,reference being had to the accompanying drawings, where Figure 1represents a plan view of the improved machine. Fig. 2 represents apartial front elevation and central longitudinal section showing thevarious parts of the machine previous to creasing and securing the sidesof the pasteboard box to its bottom piece. Fig. 3 represents a partialside elevation and longitudinal section showing the various parts of themachine in position while the side pieces of the pasteboard box arebeing united to the bottom piece. Fig. 4. represents a detail bottomplan view of the vertically-adjustable platen that carries the rollersfor operating the creasers or folders. Fig. 5 represents a detail planviewof the lower bearing-plate for the vertically-movable rods by whichthe box is automatically removed from the machine after it is finished.Fig. 6 represents a detail front and sectional view of the pawl-plateand its spring-pawls for operating the discharge-rods and mechanism forremoving the box when finished. Fig. 7 is a plan view of theboxcorner-releasing mechanism, and Fig. 8 represents perspective viewsof the Sides and bottom parts of the pasteboard box before being unitedtogether; and Fig. 9 represents a detail view of the pawls on thebox-removing mechanism.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

a. is the hollow standard or post, to the upper end of which issecuredfirmly the horishape of a hollow frame, the outside dimeninside of thebox thatis being made. Such in two or more laterally expansive andadjustable parts. On the interior of the box-former c are madevertically-perforated ears 0 c, fitting loosely on the stationaryguide-pins b b, that are secured to top of platen b, so as to serve asvertical guides for the box-former 0 during its vertical motion fromandto the top of platen b, as will be further described. The former c israised by means of treadle-lever d,

base-plate a. of the standard a, as shown in Fig. 3, such lever havingthe foot-treadled at its forward end, and an adjustable counterweight, dattached to its rear end, as shown in said Fig. 3. j 1

To the treadle-lever d,-within the post a,is hinged at e the forked heade,to which isattached the upwardly-projecting rod 6. To the upper end ofrod 6 is attached the forked head 6 as shown in Figs. 2 and 3, throughthe upper end of which projects the horizontalpin the elongated slot fin the connecting-rod f, the upper end of which is jointed at f to thelevers g g, as shown in Figs. 1 and 2. Each lever g is made to swing onits fulcrum-pin 9', located in bearings 12 b", attached to or cast inone piece with plate I), as shown. 9 has in its outer end a lip, 9,adapted to work against a bar, h, secured to the inner end of box-formerc by means of set-screw h, as shown in Figs. 1, 2, and 3. Above bar h,to the inside of former c, are cast the corner ears or lugs, c c,thatare tapped for the reception of the adjustable set-screws c 0 the lowerends of which are made to abut against the upper side of bar h, topermit the latter to beadtreadle d is depressed by the operator.

To the ends and sides oftheplatenb are hinged the downwardly-projectingcurved 1evers 'i t t t by means of hinge or fulcrum pins box-former maybe made in one single piece or 0 the central part of which passesthrough OF BoS'roN, ASsreNoE ro J. ARTHUR NELSON, 0

zontal plate b, as shown. On the plate I) rests I loosely the box-formera, made of metal, in the sions of which are equal, or nearly so,to theEachlever t justed verticallyin relation to the box-former a c, and thusto regulate the desired upward movement of the box-former when thefootthat is hinged to the fulcrum-pin d near the b b b b passing throughears on the under side of platen b, as shown. The upper end of eachlever i is cast in the form of a foot or rest, 1', to which issecured,by means of a setscrew, the metal folder or creaser is, that hasin its upper end the inwardly-projecting lip 7c, adapted to turn overand press downward the flaps of the box-sides onto the bottom piece ofthe box, and to secure such parts together by paste or glue or otheradhesive substance, as will be further shown and described. Each holderk has a slot, h in its lower end, by means of which and the set-screw ksaid folder can be adjusted to and from the outside of the box-former 0according to the thickness of the material of which the box is beingmade. The levers 13 2' are swung outward to positions shown in Fig. 3 bymeans of the verticallymovable plate Z, cast in one piece with sleeve Z,that surrounds the hollow post a, and is made adjustable on thelatter bymeans of pin 6, connected to forked head 6 and treadle mechanism,asaforesaid. Said pin e projects laterally through slots a a, made on two0pposite sides of standard a, and into perforations made in sleeve Z, asshown in Fig. 2.

To the under side of plate Z are secured the bearings Z Z, havinghorizontal pins Z passing throughthem, and on which are looselyjournaled the respective anti-friction rollers Z, as shown in Figs. 2,3, and 4. The rollers Z are adapted to lie in contact with the inside ofthe respective levers it, and to cause the latter to be swung outwardlywhen the sleeve Z and its plate Z are moved downward by the action ofthe treadle-lever d d. Each leverz' terminates in its lower end as ashort linear or flat face, 11", that is made parallel with the interioror upright face of its corresponding folder, is, and it is made for thepurpose of permitting the movable plate Z and its sleeve Z to be drawndownward during a short time at the end of its stroke without expandingthe levers z" after the faces of the folders is have been brought upagainst the outside of the sides of the pasteboard box surrounding theformer a, and the folder-lips 7c brought down on top of the folded flapsof the box and the pasted bottom boxpiece resting on top of box-former0, as shown in Fig. 3,'and during this'latter part of the downwardstroke of plate Z its pin 6 is brought in contact with the lower end ofslotf on the rod f, causing the latter to be pulled downward, and thebox-former c to be raised and pressed upward against the bottom ofpasteboard box, its turned-over flaps, and the lips k on the foldersk,by the connecting mechanism of levers g g and bars h h, as described,as fully represented in Fig. 3, and thus causing the turned-over flapson the sides of the box to adhere to the pasted edges of the bottompiece previous to removing the box from the former".

The mechanism for automatically removing and raising the box from theformer c is carried out as follows: A short distance below the sleeve Zis secured on the hollow standard a the bearing-plate m, as shown inFigs. 2, 3, and 5, provided with radial arms m m, having eachaperforation in its outer end, into which its respective vertical rod ais guided. The rods a are guided in their upper ends in perforated earsb b, projecting outward from the corners of the upper platen,b,as shownin Figs.

1, 2, and 3. Each rod a has attached to its upper end thevertically-adjustable socket n, secured in place on rodn by means ofset-screws a, or equivalent device, by means of which the socket a maybe adjusted up or down on rod n, according to the depth of the box thatis being made. The socket n has also ahorizontal perforation, in whichislocated the laterally-adjustable spindle 0, secured to socket n bymeans of set-screw n or similar device. The inner end of spindle 0 hasan eye, 0, to which ishinged, by means of adjustable thumb nut and screw0, the forked corner rest, 0 as shown in Fig. 7, by which arrangementsaid rest 0 may be adjusted up or down and to and from the box-former,according to the depth and size of the pasteboard box that is beingmade,the underside of the latter resting loosely at the corners on theforked rests 0 o during the operation.

a is a collar on each rod 11, secured to it and located above the radialarm m, as shown in Figs. 2 and 3, such collar serving as astop to limitthe downward motion of each of the respective rods 11, against therespective radial arms m. To two opposite sides of the movable platelaresecured the downwardly-projecting slotted bars 12 9, their lower endsbeing guided in cut-away parts m m on the lower stationary plate,m, asshown in Figs. 3and 5. Each barp has a vertical slot, 19, in'which arepivoted the pawls q q on the pin as shown in Figs. 3, 9, and 6, and eachpawl qhas near its lower end a cut-away portion, g, combined with anexpansive spring, q, uniting said pawls q q in such a manner that thelower and upper ends of said pawls will automatically expand to theposition shown in Fig. 9, when the plate Z, sleeve Z, and bars 1) 19approach the lower end of its stroke, causing the upper ends of saidpawls to project directly below the levers r r, as shown in Fig. 9. Eachlever r is hinged at r to the standard or bracket m secured to or castin one piece with lower plate,m, as shown in Figs. 2 and 5. The outerend of each lever r is forked at r", where it embraces its respectiverod n, as shown in said Figs. 2 and 5, and its outer end islooselyconnected to rod nby means of pin a, secured to rod a above the forkedlever end 1" and collar a below it, as shown in Fig. 2, and by thismeans, after the treadlelever d has been depressed and the bottom of thebox united to its sides, as described, the bars p p, and with them theexpansive pawls q q, are automatically caused to move upward as soon asthe operator relieves the pressure on treadle d, and thereby causing theupper ends of pawls q q to act on levers r r and their respective rodsan to raise them upward, and with them theboxcorner supports 0 0 0*, bywhich arrangement the finished box ismoved upward and disengaged fromthe box-former c. As the bars 1) p reach their upper positions the pawlsq q are automatically brought together to the position shown in Fig. 6by the action of their lower projections, q, on the inside of the guidesm m in plate m, causing the levers r a" to be released from said pawls qq, and causing said levers 'r r, their rods n a, and box-corner supports0 0 to drop down to their normal lower positions, as represented in Fig.2, and the machine is now ready for the reception of another box to beunited in the same manner, and so on.

In Fig. 8, 8 represents the continuous side portion of the pasteboardbox with its up- I wardly-projecting flaps s s s s, in the usual manner,with this difference, however, that no scoring is made at the junctionof the main part of sides 8 and its flaps s s.

8 represents the bottom piece that is to be pasted or glued to thebent-over flaps s s s s by means of the mechanism and in the manner ashereinabove described.

The operation of the machine is as follows: After having adjusted thecorner supports, 0 to their respective positions on the rods n accordingto the depth of the sides 8 of box to be made, I place the bottompasteboard piece, 8'', on top of former a, and the continuous sidepasteboard piece, 8, around the former c in such a manner that the loweredges of the pasteboard sides 8 shall rest loosely on the cornersupports, 0 and the flaps s s of the, pasteboard sides project above theformer a, as shown in Fig. 2. The inner sides of flaps s, or acorresponding space on the outer edge of top of the bottom piece, .9,having been previously pasted or glued in the usual manner, I nowdepress the treadle d, causing the rollers Z Z to act on curved levers i43, and to force the folders 70 k against the outside of the box s atthe same time as the lips 70 k on folders k impinge on pasteboard flapss and bend them over onto the top of the pasteboard piece 8', as shownin Fig. 3, in which position 7 the box parts are held. By furtherdepression of lever d the rod f is drawn downward, causing the former ato, be forced upward by the influence of levers g g" and bars It 72, andthereby causing the pasted edges of flaps s s i and bottom piece, 8, tobe still further pressed I firmly together between top of formers andunder side of lips k k on the folders k k, as shown in Fig. 3. Theoperator now relieves the pressure on treadle d, by which the folders kk are automatically causedto expand to positions shown in Fig. 2, andthe corner rests,- 0 0", to be automatically raisedias described, forexpelling the ready-made box, and afterward to return to their normalpositions, I

(shown in Fig. 2,) when a new box is placed on the former a, to be actedon in the same manner, and so on.

What I wish to secure by Letters Patent, and claim, is I 1. In apaper-box machine, the stationary support I), having former a, andhinged levers t, combined with folders k It, made adjustable to and fromthe former 0 upon the levers z, substantially as set forth.

2. ha paper-box machine, the platen b, box-former c, and hinged foldersk is, attached to levers t i, in combination with vertically-movableplate Z,its rollers Z,

and intermediate connecting mechanism to the treadle-lever d,substantially as set forth and described.

3. In a paper-box machine, the herein-described box support andreleasing mechanism, consisting of vertically-movable rods to n, latthestandard a,

erally and vertically adjustable corner sup- 7 ports, 0 0 levers i r,and'automatic pawlsq' q, journaled to the vertically-movablebars p1),and actuated by and connected to the treadle-lever d, substantially in amanner and I for the purpose as set forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

BERNARD E. BECKER.

Witnesses: I

V HENRY CHADBOURN,

ALBAN ANDREN.

